00780nam a22002532a 4500 50013 BD-RJUL 20211209075438.0 160823s1955 xx 000 0 eng d BD-RJUL 50133 WSU WSU OCL UKM EQO eng eng 373 18 HAS 1955 LB2822 .H28 Hammock, Robert C, 1908- 149872 Supervising instruction in secondary schools / Robert C Hammock McGraw-Hill : London ; 1955 316 p ; 23 cm. McGraw-Hill series in education School supervision, Secondary 149873 Owings, Ralph S., 1903- 149874 McGraw-Hill series in education 149888 ddc BK 50013 50013 0 0 ddc 0 0 NFIC RUCL RUCL Stack 1957-10-08 P.A. Commercial 23.00 0 373 HAS 1955 2016-08-23 00:00:00 C-2 2016-08-23 BK